NodeJS: Why is function being skipped?

am new to nodeJs and trying to understand why in this file--app.js--the function main() never gets executed.

If I add a console.log statement before the function, it gets executed, but nothing inside the function gets executed.

I have used the debugger, and sure enough, the function is being skipped altogether.

Why is this occurring? Is there some component of node that I have overlooked?

'use strict';

const sendEmail = require('./send-email');

module.exports = main;

//console.log("This gets executed");

//this function never gets executed!
function main()
{
debugger
...some functionality...
}

via yalpsid eman